JavaScript, Node, Deno

Welcome to the Flagship JS SDK documentation!

The following article will guide you through the steps to get Flagship up and running on your JavaScript environment (client-side or server-side) using our client library with preconfigured methods to implement the Decision API.

Wants to have a look at the GitHub repo? Link here.

Feel free to contact us if you have any questions regarding this documentation.

📘
That SDK is compatible with NodeJS, JS, TS & Deno Environment.
Any question? Contact our support

Release notes

3.3.2 (Latest version)

Improved

Usage data collection process

Fixed

Fixed a typo error in the DecisionMode property value of the usage tracking hit.
Fixed Intl property error

3.3.1

Fixed

Usage tracking collection issue

3.3.0

Added

Collecting developer usage tracking data:
- The SDK now collects troubleshooting data, which will help us find implementation issues
- The SDK now collects usage data, which will help us improve our product
disableDeveloperUsageTracking property in config object.
Experience continuity in bucketing mode

3.2.6

Added

campaignName, variationGroupName and variationName in Flag metadata

3.2.5

Added

fetchFlagsBufferingTime property in config object.
trackingManagerConfig property in config object.
New warning logs

Deprecated

trackingMangerConfig property of config object.

3.2.4

Added

qt field in activate batch. It represents the time delta (in milliseconds) between when the hit reported occurred and the time it was sent.
nextFetchConfig property in config object.

Improved

The flow of Visitor consent hit in Periodic strategy

3.2.3

Fixed

Deno issue

3.2.2

Improved

SDK logs

3.2.1

Fixed

vitejs build issue

3.2.0

Added

Third party integration in bucketing mode

3.1.4

Added

OnVisitorExposed callback in config object

Deprecated

onUserExposure property in SDK
flag.userExposure method

Changed

logLevel for non-consent mode and panic mode

3.1.3

Fixed

webpack 5 compilation error targeting web

3.1.2

Fixed

default logs manager timestamp

3.1.1

Added

BUCKETING_EDGE mode see
exports field in package.json

3.1.0

Added

Hits are now sent with a batch processing system see
trackingMangerConfig option in SDK Config
DecisionMode.DECISION_API enum in decisionMode option of SDK Config
Flagship.close method

Changed

Interface IHitCacheImplementation

Removed

activateDeduplicationTime option from SDK Config

Deprecated

DecisionMode.API use DecisionMode.DECISION_API instead of

3.0.15

Added

onLog property in SDK Config

3.0.14

Added

Flagship ReactJS and React-native SDK can now override SDK code version with their own

3.0.13

Added

visitor_consent key in the body of the campaign request

Removed

sendContextEvent query param from the campaign request

3.0.12

Added

onUserExposure property in SDK Config

3.0.11

Fixed

When flag value from Flagship is false or 0, Flag.getValue() always returns the default value instead of flag value

Updated

package dependencies to the latest version

3.0.10

Added

react-native Property in package.json file

Changed

Event hit property value can now only accept an integer and must not be a negative value

3.0.9

Fixed

Flagship.Start method returns a null instead of Flagship instance when API_KEY or ENV_ID is null,

3.0.8

Fixed

Flagship.Start method returns null instead of Flagship instance when API_KEY or ENV_ID is null,

3.0.8

Added

esm support

3.0.7

Added

slug property in flag.metadata

Changed

Now lookupVisitor and lookupHits methods will be called each time visitor.fetchFlags method is called
When the default flag value is "null", no type checking will be performed anymore